Camera lens and diaphragm adjusting mechanism.



J 1. TESS!ER.- CA'MERA LENS AND .DJAPH RAGM ADJUS'HNG MECHANISAPPLICATION FILED APR-30, l9I3.

65m Aug. 31, 1915.

2 SHEETS-SHEET I.

ATTORNEY. Y 1

WITNESSES 1 TES SIER. CAMERA LENS AND DIAPHRAGM ADlUSHNHMECHANISM.

APPLICATION m5!) APR. 30. 1913.

Pafenieflfing. 31, 1915.

2 SHEETSSHEET 2.

w gs

WITNESSES A NOR/Vi).

J'ULIEN TESSIER, OF PHILADELPHIA, PENNS YLVANIA,

ASSIGNOR TO L'UBIN MANU- FACTURING COMPANY, OF PHILADELPHIA,PENNSYLVANIA, A. CORPORATION 01 PENNSYLVANIA.

CAMERA LENS AND DIAPHRAGM anarusrms mncnamsn.

To all whom it may concern Be it known that I,J'ULIEN Tnssmn, a c1t1- Izenof the French Republic, residing in the city-of Philadelphia, county'of Philadel-- phia and State of Pennsylvania, have inQ vented certainImprovements in Camera 7 Lens and Diaphragm Adjusting Mechanism,

of which the following is a specification.

ng the positions of lenses and varying the ghtapertures thereof, and myleading object i-s'to provide simple and eflicient apparatus wherebyex'act adjustments can be ob tained with different lenses.

. The characteristic I features of my improvements are fully disclosedin the following description and the'accompanyingdrawings inillustration thereof- In. the drawings, Figure 1 i s a broken sectionalelevation taken through the axis of a camera having my improvementsapplied thereto; Fig.2 is a broken elevationof the same; Fig. 3 is asectional view taken on the "line 33 of Fig. 1; Fig. a is a sectional,fixed on a---shaft'18' fulcrumed in the bear- 7 in'gs '19. --A' beveledgear 20 1s fixed on the ing a dove tail channel 3.

view taken on the line 4+4: of Fig. 1; Fig. 5 is a longitudinalsectional view taken on the line 5-5 of Fig. 3; and Fig. 6 is a brokenperspective view showing the lens case and connections. I

' The mechanism, as illustrated in the drawings, comprises the case 1containing .theplate 2 which supports a guide 3 hav- A dove-tail slide4, movable in the channel 3, has fixed thereon an arm 5 which carries.an internally threaded ring 6. The lens tube 7 has a reduced threadedpart 7" which is screwed into the ring 6, and the lens case Sims 2.reduced threaded part 8 which is screwed into the part 7.' A ring 9, onthe cylindrical case 8, is connected with and operates the diaphragm 10within the case, and isshaft l'8 and meshes with-a beveled gear 21 linedon a journaled shaft 22, the latter hav- Application filed April so,1913. Serial No. 764,566.

My invention relates 'to means for adjust 4 Specification of I.etters late nt. Pat t d A 31,1915

fixed thereon an indicator 23 provided with handles 24. This indicatoris provided with stepped indicating sections 23, 23",

and 23" and moves over adial 25 having cgncentric graduated scales 25,25"v and 2 with which-the sections 23, 23" and 23 register.' The severalscales and corresponding indicating devices are designed for use withseveral lenses, with respectto Which' the several indicating devices arecomplementary. 5

The slide 4. is provided. with an internally threaded hub 26. into whicha threaded shaft 27 is screwed, the shaft beingjournaled in the bearing28 and having a beveled gear 29 fixed thereon.- A beveled gear 30 mesheswith the gear .29 and is fixed on a journaled shaft 31 having fixedthereon the indicator '32 adapted to be turned by handles 33.v Theindicator32 is provided with stepped indicating parts 32-, 32" and 32,and is movable over a dial-'34: having concentric graduations 34:,34 and34" complementary to the parts 32, 32" and 32". These severalgraduations, and indicating devices are-also complementary to severallenses with which they are adapted for use.

It will be understood that, in operation, the lens on lenses 35 in thecase 8 are-focused by turning the arm 32 until the section thereofcorresponding to the lens occupies the desired position upon thegraduated scale overvvhich it is movable,.the arm 32 revolving the shaft31, the beveled gears 30, 29 and the shaft 27, which acts through thehub 26 tomove the slide 4 in theway 3, to adjustthe position of the ring7, which is connected to the slide by the parts 5 and 6. In thisadjustment, the pin 15 moves freely through the link 16. The diaphragmis ad- 'justed by turning the indicating arm 23 to effect the desiredregistration with'the graduationscorresponding to the style of lens, thearm 23 acting upon the diaphragm through the parts 22, 21,20, 18, 17,16, 15, 11,

12 and 9.

' Having described my invention, claim: 1. A camera comprising a casing,a guiding device disposed within. and fixed relatively to said casing, aslide controlled by said device, a lens and diaphragm mechanism carriedby said slide, said diaphragm mechanism comprising relatively, movable'partsproviding an adjustable aperture,

means for moving said slide whereby the position of said'lens isadjusted, means comprising a graduated device for setting said lens,means for operating said parts to adjust the aperture of saiddiaphragm'in va rious positions of said lens, and means com prising agraduated device: whereby said diaphragm is set.

2. The combination of a guiding device with a slide provided with an armhaving a a diaphragm and a lens, a journaled shaft J having a threadedconnection With the slide whereby said tube is moved longitudinally, asecond journaled shaft, 'gears connecting said shafts, an indicating armon said sec ond shaft, a dial over which said arm is movable, mechanismfor ad ustlng sald diaphragm in various positions of said tube,

-said mechanism comprising a journaled shaft, a second journaled shaft,an indicator on said last named shaft, a dial over which said last namedindicator is movable and gears connecting said last named shafts.

4:. The combination of a lens, means comprising a shaft forreciprocating said lens,

a' diaphragm movable with said lens and having an adjustable aperture,means comprising'a shaft disposed substantially parallel to said shaftfirst named for adjusting said diaphragm aperture, and indicatingmechanism for denoting the adjustment of said lens and aperture.

5. A camera comprising a casing, a lens,

a reciprocating support in said casing for. sald lens, means for adusting said support,

a diaphragm for said lens, means comprising a revoluble ring foradjusting said diaphragm, and indicating mechanism comprising apluralityof scales for denoting the correspondence of said diaphragm andsupport.

6. The combination of a lens, a reciproeating supportfor saidlens,means'bomprising a shaft for reciprocatingsai'd support,-a diaphragm forsaid lens and mov-" able therewith, an oscillating device and arevoluble' ring operated thereby for adjusting said diaphragm,'and meanscomprising shaft for oscillating said device.

' In testimony whereof I have hereunto set my hand this lath day ofApril, 1913, in the presence of the subscribing witnesses. JULKEN'TESSIER.

Witnesses:

. CHARLES GoLDsMrn-r, Jos. Gr. DENNY, Jr.

